Four units of the company filed for bankruptcy protection in July as the government's investigation intensified.

The investigation into Mr. Ressam's activities markedly intensified late last week, after his arrest.

As the investigation intensified, Army officials conducted considerable personal surveillance of members of the network in West Germany.

She said, however, that she believed the investigation had intensified in the last few days.

However, by then, the investigations had intensified, and three eyewitnesses identified a defendant as the murderer.

Now the investigation intensified, especially into anyone vindictive against the airlines.

As the investigation intensified, fears of further retaliation against American officials resulted in more than 200 Americans' leaving Pakistan today.

As the investigation into the disaster intensified today, it was also a day of prayer and mourning in West Warwick.

The investigation intensified today as Swiss authorities asked Washington for information about some over-the-counter American companies.

At the same time, criminal investigations into wrongdoing at the firm during the 1980's and early 1990's are intensifying.